Comparison of SAPPHIRE PULSE Radeon RX 6600 XT video card vs GALAX GeForce GTX 1080 EX OC V2 video card by specifications and benchmarks. SAPPHIRE PULSE Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GALAX GeForce GTX 1080 EX OC V2 runs at 1.620 GHz+ 1 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 160 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.